class C
	def talk
		puts "Hi from original class!"
	end
end

module M
	def talk
		puts "Hello from modules!"
	end
end

c = C.new
c.talk
class << c
	include M
	p ancestors
end
c.talk


class C2
	include M
end


c2 = C2.new
class << c2
	p ancestors
end
c2.talk